Bug Description

This is a tracking bug for a dependency of the juju MIR (bug #912861).

Some of this is discussed in bug #907094, but that deals solely with AWS. Should try to remove sensitive credentials like access-key, secret-key and admin-secret from zookeeper. The should be done even if ACLs are in place in an effort to provide security in depth and guard against configuration or implementation errors in juju and/or zookeeper.